Messages in this thread | | | Date | Mon, 16 Jan 2023 06:26:50 +0100 | Subject | Re: [PATCH] x86: also disable FSRM if ERMS is disabled | From | Jiri Slaby <> |
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On 04. 01. 23, 12:39, Borislav Petkov wrote: > On Wed, Jan 04, 2023 at 08:43:51AM +0100, Jiri Slaby wrote: >> Let me resurrect this thread... Our customer has an AMD CPU which has indeed >> both capabilities under normal circumstances. But they have a cool UEFI BIOS >> too. They say: >> >> """ >> In AMD platform, while disalbe ERMS(Enhanced Rep MOVSB/STOSB) in UEFI >> (system setup -> processor -> Enhanced Rep MOVSB/STOSB), the OS can't boot >> normally. > > Any particular reason they're disabling ERMS?
Just so you know (I see you progressed with Ingo to fix this) -- despite I asked the very same question, I received no answer quite yet. I suppose it will sound like usual "because we can".
> What do they set FSRM to?
I suppose they keep it "enabled".
thanks, -- js suse labs
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